KR102634596B1 - A door lock having a direction change function of a latch bolt - Google Patents

Abstract

The present invention relates to a door lock with a latch bolt direction change function that can be selectively installed universally in both directions without being limited to any specific direction. More specifically, it relates to a space 11 formed inside, and a portion of A first circular hole (12a) is formed, a first square hole (12b) is formed at a certain distance away from the first circular hole (12a), and a plate (12) is formed that is attached to the side of the door (Do). A case (10); and a deadbolt (20) accommodated in the space (11) of the case (10) and configured to penetrate the first circular hole (12a), and locking the door (Do) by back and forth operation. A hole 31 into which a rod h2 is inserted is formed, and a rotating body 30 is pulled and rotated by the rod h2; and is accommodated in the space 11 of the case 10 and operates back and forth. It is configured to penetrate the first square hole (12b) of the flat plate (12) to open and close the door (Do), and includes a side portion (41a) with a 'ㄷ'-shaped cross section, and one side of the side portion (41a). A bracket 41 made of a front plate 41b on which a third circular hole 41b2 is formed. The latch bolt 42 includes a head 42a having a second inclined surface 42a1 formed on one side to determine whether to lock the door lock, and a flat surface 42a2 formed on the other side of the second inclined surface 42a1; and a circular first end (42b1) having a larger diameter than the third circular hole (41b2) in one direction of the head (42a), and accommodated inside the circular hole on one side of the first end (42b1). A neck consisting of a second stage (42b2) having a rotatable size and shape, and a circular third stage (42b3) having a diameter larger than the third circular hole (41b2) on one side of the second stage (42b2). A latch 40 consisting of (42b); and a spindle connector 50 provided at each end of the rotating body 30 and rotated by the spindle h4; and located on the lower side of the spindle connector 50 , a connecting rod 60 that moves up and down by the rotation of the spindle connector 50; and a lever provided at the lower part of the connecting rod 60 to retract the latch 40 by rotating by the up and down operation of the connecting rod 60. 70); and can be attached and detached from one side of the plate 12, and when not attached to the plate 12, the head 42a of the latch bolt 42 is completely exposed to the outside of the plate 12. It is characterized by including a guide plate 80 configured to allow the user to set the direction in which the second inclined surface 42a1 of the head 42a is viewed by turning.

Description

A door lock having a direction change function of a latch bolt}

The present invention relates to a door lock equipped with a latch bolt direction change function that contributes to the locking function of a swing door. More specifically, a latch bolt direction change function that is not limited to any specific direction but can be selectively installed universally in both directions. This relates to a door lock with functions.

A swing door is divided into an outer door and an inner door depending on the direction in which the door opens.

Outward-swinging doors are used at the exits of buildings such as offices or apartments where people gather to enable quick evacuation in dangerous situations such as fire, and in-swinging doors are used in each room and bathroom in a home to protect privacy and utilize living space.

The above swing doors are equipped with a door lock that functions as a lock, and these door locks generally consist of a handle placed at the front and rear of the swing door and a latch bolt that enters and exits from the side of the swing door by rotating the handle forward and backward.

The above latch bolt consists of a head with an inclined surface on one side and a flat surface on the other side, and the inclined surface is located in the direction in which the door is closed. When the door is closed, if you push the handle without turning it, the latch bolt moves down the inclined surface and goes inside the door lock. As you enter, the door closes.

Therefore, when manufacturing and constructing a swing door, there is the inconvenience of having to prepare a separate door lock depending on the direction in which the door opens. As a related prior art to improve the above problem, Republic of Korea Patent Publication No. 10-2006-0113227 A “door lock back set capable of changing direction” is disclosed.

This technology proposes a structure that changes the direction of the latch bolt by pulling it out from the latch bolt hole in the front cover and rotating it, and the support bracket has a through groove open at one end, and the shaft is inserted into the through groove. The direction of the latch bolt changes as it rotates.

At this time, the shaft has a structure that can deviate out of the through groove, and the latch bolt has a structure that lacks stable direction change.

In addition, the reciprocating pin must be advanced to the stage before the latch bolt is pulled out from the latch bolt hole of the front cover to release the slide pin from being in close contact with the contact surface of the drive lever. Therefore, there is an inconvenience in that the swing door must be disassembled in order to change the direction of the latch bolt after the door lock is installed inside the swing door.

As an example of other prior art related to the above, Republic of Korea Patent No. 10-0907641 discloses “mortise locking device with a latch bolt that can be reversed in the installed state.”

The technology includes a stopper having a corresponding engaging body corresponding to the engaging body of the latch bolt so that the corresponding connecting portion of the interior body and the advancing and retracting body in the latch bolt is limited by the restraining means; and a latch release means that releases the latch bolt and the stopper's corresponding latch body and is provided on the exposed side of the housing and includes a through hole connected to the stopper.

By inserting a bar into the hole and pressurizing the stopper, the latch bolt is configured to leave the flange and then change the direction of the inclined surface of the latch bolt.

According to this, in the above prior art, there is an inconvenience in that the worker must carry a rod that can be inserted into the hole in order to change the direction of the inclined surface of the latch bolt, and there is a factor in increasing the manufacturing cost related to the configuration of the stopper.

Republic of Korea Patent Publication No. 10-2006-0113227 “Door lock back set capable of changing direction” Republic of Korea Patent No. 10-0907641 “Mortis locking device with a latch bolt that can be reversed in the installed state”

The present invention was created to actively solve the above-mentioned problems, and provides a 'latch bolt direction change function' in which the direction of the slope of the latch bolt can be adjusted without disassembling the swing door when the door lock is assembled inside the swing door. The main problem is to provide ‘equipped door locks’.

In addition, another problem to be solved is to reduce the increase in manufacturing cost of the 'door lock with latch bolt direction changing function' proposed by the present invention compared to the prior art by efficiently constructing a structure for assembling the latch bolt direction. .

In order to achieve the above-mentioned problem, the configuration of the door lock with the direction change function of the latch 40 proposed in the present invention is as follows.

A space 11 formed inside, a first circular hole 12a formed in part, a first square hole 12b formed at a certain distance away from the first circular hole 12a, and a door (Do) A case 10 in which a flat plate 12 is attached to the side of the case 10; and a case 10 accommodated in the space 11 of the case 10 and configured to penetrate the first circular hole 12a, and the door (Do) is operated back and forth. ) a deadbolt (20) that performs locking; and a rotating body (30) formed with a hole (31) into which the rod (h2) is inserted and rotated by being pulled by the rod (h2); and the case (10) It is accommodated in the space 11 and is configured to penetrate the first square hole 12b of the flat plate 12 by back and forth operation to perform the opening and closing of the door (Do), and has a 'ㄷ'-shaped cross section. A bracket 41 consisting of a side portion 41a and a front plate 41b having a third circular hole 41b2 penetrating one side of the side portion 41a. The latch bolt 42 includes a head 42a having a second inclined surface 42a1 formed on one side to determine whether to lock the door lock, and a flat surface 42a2 formed on the other side of the second inclined surface 42a1; and a circular first end (42b1) having a larger diameter than the third circular hole (41b2) in one direction of the head (42a), and accommodated inside the circular hole on one side of the first end (42b1). A neck consisting of a second stage (42b2) having a rotatable size and shape, and a circular third stage (42b3) having a diameter larger than the third circular hole (41b2) on one side of the second stage (42b2). A latch 40 consisting of (42b); and a spindle connector 50 provided at each end of the rotating body 30 and rotated by the spindle h4; and located on the lower side of the spindle connector 50 , a connecting rod 60 that moves up and down by the rotation of the spindle connector 50; and a lever provided at the lower part of the connecting rod 60 to retract the latch 40 by rotating by the up and down operation of the connecting rod 60 ( 70); and can be attached and detached to one side of the flat plate 12, and when not attached to the flat plate 12, the head 42a of the latch bolt 42 is completely exposed to the outside of the flat plate 12, so that the head ( It is characterized in that it includes a guide plate 80 configured to allow the user to set the direction in which the second inclined surface 42a1 of 42a) is viewed by turning.

In addition, first bolt holes 12c for fastening bolts to the door Do are formed on the upper and lower portions of the plate 12, and first bolt holes 12c are formed at the same positions as the first bolt holes 12c on the upper and lower portions of the guide plate. A second bolt hole 83 smaller than (12c) is formed, and a protruding end 84 that can be accommodated on the inner surface of the first bolt hole 12c is formed on one side of the second bolt hole 83. It is characterized by

In addition, the flat plate 12 is made of a metal material and the guide plate 80 is made of a magnetic material.

In addition, the spindle connector 50 is formed with a third groove 51 through which the spindle h4 passes, and the contact area with the spindle h4 is increased on one side of the third groove 51, thereby increasing the spindle (h4). It is characterized in that a reinforcing part 52 is formed to reduce the gap that occurs when the h4) and the spindle connector 50 are combined.

In addition, in the spindle connector 50, the upper reinforcement portion 52 is characterized in that a portion of the third groove 51 has an open shape 53 so that it can be manufactured by bending after press forming a metal plate. .

In addition, a 'ㄷ' shaped first groove 21 is formed at the rear bottom of the deadbolt 20, and the rotating body 30 has a protrusion 32 accommodated in the first groove 21 on the outer surface. ; is formed, and when the rotating body 30 rotates, the protrusion 32 pushes the left or right side of the first groove 21 and moves the deadbolt 20 forward or backward, thereby locking the door (Do). ,

A first inclined surface (22) at a 45 degree angle is formed at the left and right lower ends of the first groove (21), so that when the deadbolt (20) is fully advanced or backward, the protrusion (32) is in contact with the first inclined surface (22). It is characterized by being in contact.

In addition, it includes a first torsion spring (S1) on the upper side of the rotating body 30, and when the protrusion 32 is rotated by the rotation of the rotating body 30, the protrusion 32 is a first torsion spring (S1). S1) is deformed, and the rotation of the protrusion 32 is accelerated by the elastic restoring force of the first torsion spring S1, thereby accelerating the forward or backward operation of the deadbolt 20.

A detachable guide plate 80 is provided on one side of the flat plate 12, and when the guide plate 80 is not attached to the flat plate 12, the head 42a of the latch bolt 42 is attached to the flat plate 12. ) A door lock that is completely exposed to the outside and is configured so that the user can set the direction in which the second inclined surface (42a1) of the head (42a) is facing by turning, and has a direction change function of the latch bolt of the present invention. Even when assembled to the door (Do), the latch bolt 42 can be rotated 180 degrees, making it easy to adjust the locking direction of the latch bolt 42 according to the door opening direction.

In addition, the main component for changing the direction of the latch bolt 42 is the guide plate 80, which is detachable from the flat plate 12, and has the advantage of reducing the increase in production cost compared to conventional technology.

Figure 1 is a perspective view showing the coupling relationship between a 'door lock (1) with a latch bolt direction changing function' constructed according to a preferred embodiment of the present invention and a handle (H).
Figure 2 is a perspective exploded view of the cover 13 in the 'door lock (1) with a latch bolt direction change function' of the present invention.
Figure 3 is a front view of Figure 2 with the cover 13 removed.
Figure 4 is a state diagram showing the before and after operation of the deadbolt 20 proposed by the present invention.
Figure 5 is an enlarged view of the latch bolt in Figure 2.
Figure 6 is a perspective exploded view of the latch bolt of Figure 5.
Figure 7 is a use state in which the direction of the latch bolt 42 is changed by attaching and detaching the guide plate 80.
Figure 8 is a perspective view showing the protruding end 84 of the guide plate 80.
Figure 9 is a cross-sectional view taken along lines AA' and B-B' in Figure 7.
Figure 10 is a cross-sectional view showing the coupling relationship between the bracket 41 and the latch bolt 42.
Figure 11 is an assembled view and a perspective exploded view of the rotating body 30, the spindle connector 50, and the connecting stand 60.
Figure 12 is a perspective view showing the coupling relationship between the spindle h4 and the spindle connector 50.
Figure 13 is a perspective view showing bending and processing of the reinforcement portion 52 of the spindle connector 50.

Hereinafter, the configuration of the present invention and its operations and effects will be described collectively with reference to the accompanying drawings.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete, and are provided by those skilled in the art in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. In addition, the same reference numerals refer to the same elements throughout the specification.

As shown in Figure 1, it is placed on both sides of a door frame installed on the wall between the interior and exterior of a building or an interior space, and a door (Do) that is connected to rotate with a hinge on the inside of the door frame to determine whether the user can enter or exit. In a pair of handles (H) that guide whether the door (Do) is opened or closed by the user's grip and operation,

The 'door lock (1) with a latch bolt direction change function' of the present invention is inserted and installed into the door (Do) and is connected to the handle (H) to determine whether or not the door (Do) is locked, and has a detailed configuration of the case ( 10) and deadbolt (20), cover (13), latch (40), spindle connector (50), connecting rod (60), lever (70), guide plate (80), first torsion spring (S1), 2Includes a torsion spring (S2) and a compression coil spring (S3).

As shown in Figures 2 and 3, the case 10 has a space 11 formed inside, and a plate 12 attached to the side of the door (Do) is formed on one side.

A first circular hole 12a is formed in a portion of the flat plate 12, and the deadbolt 20 is accommodated in the space 11 of the case 10 and is configured to penetrate the first circular hole 12a, The door (Do) is locked using back and forth operations.

Additionally, one side of the case 10 is open, and a detachable cover 13 is provided on the open side.

As a detailed configuration for operating the above deadbolt 20, as shown in FIG. 4, a key hole (h1) is formed in the handle (H), and as the user inserts the key into the key hole (h1) and rotates it, A rod (h2) that is towed and rotated is formed toward the inside of the door (Do).

The rotating body 30 is formed with a hole 31 into which the rod h2 is inserted, and is pulled and rotated by the rod h2.

In addition, a 'ㄷ' shaped first groove 21 is formed at the rear bottom of the deadbolt 20, and a protrusion 32 that is accommodated in the first groove 21 is formed on the outer surface of the rotating body 30. When the rotating body 30 rotates clockwise by the rod h2, the protrusion 32 pushes the right side of the groove to retract the deadbolt 20, thereby unlocking the door Do.

Contrary to the above, when the bar h2 rotates counterclockwise, the protrusion 32 pushes the left side of the groove to advance the deadbolt 20, thereby locking the door Do.

In addition, a first inclined surface 22 with a 45-degree angle is formed at the left and right lower ends of the first groove 21. When the deadbolt 20 is fully advanced or backward, the protrusion 32 is in contact with the first inclined surface 22. As they come into contact, the deadbolt 20 moves forward and backward solely by the rotation of the rotating body 30.

For example, if the deadbolt 20 is pushed forward, that is, a part of the deadbolt 20 is protruding outside the flat plate 12, and the end 23 of the deadbolt 20 is pushed backwards, the first inclined surface ( The protrusion 32 in contact with 22) does not move.

To explain in more detail, the rotating body 30 can only rotate based on the central axis 33 of the rotating body 30, and the deadbolt is used in a state where the first inclined surface 22 and the protrusion 32 are in contact as shown above. When a force is applied to push the end 23 of (20) to move backward, the rotating body 30 does not receive force in a rotatable direction, but an external force from the protrusion 32 toward the central axis 33 acts. . Accordingly, force is transmitted from the first inclined surface 22 to the rotating body 30 in a direction in which the rotating body 30 cannot operate, so that the deadbolt 20, which has mechanically moved forward or backward, is moved to the rotating body 30. The position is fixed by .

In addition, a first torsion spring (S1) is provided on the upper side of the rotating body 30, which means that when the protrusion 32 rotates due to the rotation of the rotating body 30, the protrusion 32 is the first torsion spring (S1). S1) is deformed, and the rotation of the protrusion 32 is accelerated by the elastic restoring force of the first torsion spring S1, thereby accelerating the forward or backward operation of the deadbolt 20.

The flat plate 12 has a first square hole 12b formed at a certain distance away from the first circular hole 12a. The latch 40 is accommodated in the space 11 of the case 10 and operates back and forth. It is configured to penetrate the first square hole (12b) of the flat plate (12) and opens and closes the door (Do).

The above latch 40 is in a forward state when the user does not operate the handle H, that is, the head 42a of the latch bolt 42, which will be described later, protrudes out of the plate 12, so that the door frame ( It serves to secure the closed door (Do) in place (not shown).

As for the configuration for this, the handle H includes a handle h3 that the user can hold and rotate by hand, and a spindle h4 that is pulled and rotates as the handle h3 is rotated by the user. ) is formed toward the inside,

A spindle connector 50, a connecting rod 60, and a lever 70 are provided as a means to force the latch 40, which is advanced by the rotation of the upper spindle h4, to move backwards, that is, into the inside of the plate 12.

Spindle connectors 50 are provided at both ends of the rotating body 30, as shown in FIGS. 11 and 12, and are rotated by the spindle h4.

In detail, the spindle connector 50 is formed with a third groove 51 through which the spindle h4 passes. The third groove 51 exerts force when the spindle h4 rotates clockwise or counterclockwise. It is configured to be transmitted to the spindle connector 50.

The contact area between the spindle h4 and the spindle connector 50 is proportional to the thickness of the spindle connector 50. The spindle connector 50 can be made of a metal plate with a thickness of about 2 mm, and the spindle connector 50 and A gap occurs between the spindles (h4).

This gap between the spindle (h4) and the spindle connector 50 causes noise and spindle connector friction due to friction between the spindle (h4) and the spindle connector (50) when the user rotates the handle (h3) of the handle (H). It causes shaking of (50).

Therefore, in the present invention, in order to improve the above problem, a reinforcement portion 52 is formed on one side of the third groove 51 to increase the contact area with the spindle h4, thereby connecting the spindle h4 and the spindle connector 50. ) By reducing the clearance that occurs in the coupling, noise that may occur between the spindle (h4) and the spindle connector (50) when the user manipulates the handle (h3) can be reduced.

In the spindle connector 50, the above reinforcement portion 52 can be manufactured by bending after press forming a metal plate. For this purpose, as shown in FIG. 13, a portion of the third groove 51 is formed in an open form (53). ), and the reinforcement portion 52 is formed in the position where the third groove 51 is opened during press molding.

A connecting rod 60 is provided below the spindle connector 50 and moves up and down as the spindle connector 50 rotates.

The above spindle connector 50 has protruding stopping ends 54 on both left and right sides of the groove, and the connecting rod 60 has a 'V' shape in cross section, so that the upper ends 61 on both sides of the connecting rod 60 It comes into contact with this blocking end (54).

The lever 70 is provided at the lower part of the connecting rod 60 and rotates by moving the connecting rod 60 up and down to retract the latch 40.

First, to describe the structure of the latch 40 in detail with reference to FIGS. 5 and 6, the latch 40 is composed of a bracket 41 and a latch bolt 42, and the bracket 41 has a 'ㄷ'-shaped cross section. It is formed by installing a side portion (41a) in the shape of a front plate (41b) and a third circular hole (41b2) formed on one side of the side portion (41a).

Next, the latch bolt 42 includes a head 42a having a second inclined surface 42a1 formed on one side to determine whether the door lock is locked, and a flat surface 42a2 formed on the other side of the second inclined surface 42a1; And, a circular first end (42b1) having a diameter larger than the inner diameter of the third circular hole (41b2) in one direction of the head (42a), and an inside of the circular hole on one side of the first end (42b1). A second stage (42b2) having a size and shape that can be accommodated and rotated, and a circular third stage (42b3) having a diameter larger than the inner diameter of the third circular hole (41b2) on one side of the second stage (42b2). ) and a neck 42b made of ).

As a structure to adjust the direction in which the bracket 41 and the latch bolt 42 are assembled and the latch bolt 42 is locked, the front plate 41b connects the second end 42b2 to the third circular hole 41b2. An entry portion 41b1 that can be inserted is formed, and either the horizontal or vertical direction of the cross section of the second end 42b2 has a thickness T that can pass through the entry portion 41b1, and the second end 42b2 ( The other one of the horizontal or vertical directions of the cross section of 42b2) cannot pass through the entry portion 41b1 and is formed as an arc D of a size that is in close contact with the inner surface of the third circular hole 41b2, so that the latch bolt 42 is turned. When changing the direction of the first inclined surface 22, the second end 42b2 does not deviate from the third circular hole 41b2.

As shown in FIG. 9, a second groove (42b31) is formed at a certain depth on one surface of the third stage (42b3), and a compression coil spring (S3) accommodated in the second groove (42b31) is provided.

In addition, an 'ㄴ' shaped support 14 is formed in the space 11 inside the case 10, so that the compression coil spring is supported at both ends between one side of the support 14 and the second groove 42b31. , it is compressed.

In addition, the support 14 has a protruding vertical protrusion 14b formed at the inner center in the direction where the compression coil spring S3 is located to prevent the compression coil spring S3 from leaving the set position. At this time, the compressed compression coil spring (S3) has the force to return to its original state due to the elastic restoring force, and a force to push the latch 40 forward is applied.

The lever 70 above has a first hook 71 formed in the direction in which the bracket 41 is located, and a first square groove 41a1 on one side of the side portion 41a where the first hook 71 can be hung. It is configured to pull the bracket 41 rearward by the rotation of the lever 70.

In addition, a locking groove 62 is formed under the connecting rod 60, and the lever 70 is formed with a second hook 72 that is accommodated in the catching groove 62, so that when the connecting rod 60 is lowered, the lever 70 Power is transmitted to

In addition, a second torsion spring (S2) is provided so as to span the lower end of the upper support 14 and the second hook 72, which starts from the central axis of rotation 73 of the lever 70. ) exerts a force to rotate it counterclockwise.

Accordingly, when the user does not turn the handle h3, force is applied in the direction in which the second hook 72 pushes the connection bar 60 upward.

With the above configuration, when the user turns the handle h3 clockwise or counterclockwise, the spindle connector 50 is rotated clockwise or counterclockwise by the spindle h4, and the connecting rod 60 is lowered.

And the descending connecting rod 60 rotates the lever 70 clockwise, and the first hook 71 of the clockwise rotating lever 70 pulls the latch 40 to move backwards.

As a result, the closed state of the door (Do) can be released, and when the user releases the handle (h3), the latch (40) moves forward due to the elastic restoring force of the compression coil spring (S3), leaving the door (Do) in a closed state. It is fixed to the door frame (not shown).

And the inclined direction of the second inclined surface 42a1 above is determined so that the head 42a becomes thicker toward the rear. Therefore, when closing the swing door by the second inclined surface 42a1, if the handle H is pushed without turning, the compression coil spring S3 is compressed and the latch 40 moves rearward to close the door.

In addition, the support 14 is formed with a horizontal protrusion 14a protruding in the direction in which the cover 13 is located, and a second square groove 41a2 in which the horizontal protrusion 14a can be accommodated is formed on one surface of the side portion 41a. This is formed so that the bracket 41 does not deviate from its position as it moves back and forth by the latch bolt 42.

As shown in FIGS. 7 and 8, a detachable guide plate 80 is provided on one side of the flat plate 12. When the guide plate 80 is not attached to the flat plate 12, the head of the latch bolt 42 (42a) is configured to be completely exposed to the outside of the flat plate (12) so that the user can set the direction in which the second inclined surface (42a1) of the head (42a) faces by turning it.

The above guide plate 80 includes a second circular hole 81 having the same location and size as the first circular hole 12a of the plate 12, and a second circular hole 81 having the same location and size as the first square hole 12b. A square hole is formed, and when the guide plate 80 is coupled to one side of the flat plate 12, the second square hole 82 surrounds the circumference 42a3 of the head 42a, which has a square shape, thereby forming the latch bolt 42. ) cannot rotate.

First bolt holes 12c are formed in the upper and lower portions of the flat plate 12 for fastening bolts to the door Do.

And, as shown in FIG. 8, a second bolt hole (83) smaller than the first bolt hole (12c) is formed at the same position as the first bolt hole (12c), and the second bolt hole (83) is formed in the upper and lower parts of the guide plate. A protruding step 84 that can be accommodated in the inner surface of the first bolt hole 12c is formed on one surface.

According to this, when the user attaches the guide plate 80 to the flat plate 12, the protruding end 84 is guided to be inserted into the inner surface of the first bolt hole 12c, so that the user attaches the guide plate 80 to the flat plate 12. ) can provide a structure that is easy to assemble.

In addition, the flat plate 12 is made of a metal material and the guide plate 80 is made of a magnetic material, so that the user can attach and detach the guide plate 80 from the flat plate 12 using magnetic force.

A door lock with the latch bolt direction change function with the above structure rotates the latch bolt 42 180 degrees even when assembled on the door (Do) to adjust the locking direction of the latch bolt 42 according to the door opening direction. It has a structure that is easy to operate.

In addition, the main component for changing the direction of the latch bolt 42 is the guide plate 80, which is detachable from the flat plate 12, and has the advantage of reducing the increase in production cost compared to conventional technology.

The present invention described above has been described with reference to an embodiment shown in the drawings, but this is merely illustrative, and various modifications and other equivalent embodiments can be made by those skilled in the art. should be clarified. Therefore, the true technical protection scope of the present invention should be interpreted in accordance with the attached claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Door (Do) handle (H)
Keyhole (h1) Bar (h2)
Handle (h3) Spindle (h4)
1st torsion spring (S1) 2nd torsion spring (S2)
Compression coil spring (S3)
Door lock with latch bolt direction change function (1)
Case(10) Space(11)
Flat plate (12) First circular hole (12a)
First square hole (12b) First bolt hole (12c)
Cover (13) Support (14)
Horizontal projection (14a) Vertical projection (14b)

Deadbolt (20) 1st groove (21)
First slope (22) end (23)

Hole (31) into which the rotating body (30) rod is inserted
Protrusion (32) Central axis (33)
Latch(40)
Bracket (41) side part (41a)
1st square groove (41a1) 2nd square groove (41a2)
Front plate (41b) entry portion (41b1)
Third circular hole (41b2)
Latch bolt (42) head (42a)
Second slope (42a1) plane (42a2)
Perimeter (42a3)

Neck (42b) 1st stage (42b1)
2nd tier (42b2) 3rd tier (42b3)
2nd home (42b31)
Spindle connector (50) 3rd groove (51)
Reinforcement part (52) Open type (53)
Stopper (54)
Connecting bar (60) top (61)
Hook groove (62)
Lever (70) 1st hook (71)
Second hook (72) Rotation central axis (73)
Guide plate (80) 2nd circular hole (81)
2nd square hole (82) 2nd bolt hole (83)
Raised hem(84)

Claims (7)

A door frame installed on the wall between the interior and exterior of a building or between interior spaces,
It is connected to the inside of the door frame to rotate with a hinge and is placed on both sides of the door (Do), which determines whether the user can enter or not, and induces the opening or closing of the door (Do) by the user's grip and operation.
A key hole (h1) is formed, and as the user inserts the key into the key hole (h1) and rotates, a bar (h2) that is pulled and rotates is formed toward the inside of the door (Do),
A pair of handles (h3) that the user can hold and rotate by hand, and a spindle (h4) that is pulled and rotated as the user rotates the handle (h3), are formed toward the inside of the door (Do) In H),
The space 11 formed inside, the plate 12 attached to the side of the door (Do), the first circular hole 12a formed in a part of the plate 12, and the first circular hole 12a are constant. A case (10) having a first square hole (12b) formed at a distance away from itself;
A deadbolt (20) accommodated in the space (11) of the case (10) and configured to penetrate the first circular hole (12a), and locking the door (Do) with a back and forth operation;
A rotating body (30) formed with a hole (31) into which a rod (h2) is inserted and rotated by being pulled by the rod (h2);
It is accommodated in the space 11 of the case 10 and is configured to penetrate the first square hole 12b of the plate 12 in a back and forth operation to open and close the door (Do),
A bracket 41 consisting of a side part 41a having a 'ㄷ'-shaped cross section, and a front plate 41b having a third circular hole 41b2 formed through one side of the side part 41a, and
The latch bolt 42 includes a head 42a having a second inclined surface 42a1 formed on one side to determine whether to lock the door lock, and a flat surface 42a2 formed on the other side of the second inclined surface 42a1; And, a circular first end (42b1) having a diameter larger than the inner diameter of the third circular hole (41b2) in one direction of the head (42a), and an inside of the circular hole on one side of the first end (42b1). A second stage (42b2) having a size and shape that can be accommodated and rotated, and a circular third stage (42b3) having a diameter larger than the inner diameter of the third circular hole (41b2) on one side of the second stage (42b2). A latch 40 consisting of a neck 42b consisting of );
Spindle connectors 50 provided at both ends of the rotating body 30 and rotated by the spindle h4;
A connecting rod 60 located below the spindle connector 50 and moving up and down by rotation of the spindle connector 50;
A lever 70 provided at the lower part of the connecting rod 60 and rotating the latch 40 backward by rotating the connecting rod 60 up and down; and
It can be attached and detached to one side of the flat plate 12, and when it is not attached to the flat plate 12, the head 42a of the latch bolt 42 is completely exposed to the outside of the flat plate 12, so that the head 42a ) A guide plate (80) configured to allow the user to set the direction in which the second inclined surface (42a1) of ) is viewed by turning;
A door lock with a latch bolt direction change function, characterized in that it includes.
According to paragraph 1,
First bolt holes 12c are formed in the upper and lower portions of the flat plate 12 for fastening bolts to the door (Do),
A second bolt hole (83) smaller than the first bolt hole (12c) is formed at the same position as the first bolt hole (12c) in the upper and lower parts of the guide plate, and a first bolt hole (83) is formed on one side of the second bolt hole (83). A door lock with a latch bolt direction change function, characterized in that a protruding stage 84 that can be accommodated on the inner surface of (12c) is formed.
According to either paragraph 1 or 2,
A door lock with a latch bolt direction change function, characterized in that the plate (12) is made of a metal material and the guide plate (80) is made of a magnetic material.
According to paragraph 1,
The spindle connector 50 is formed with a third groove 51 through which the spindle h4 passes, and increases the contact area with the spindle h4 on one side of the third groove 51 to form the spindle h4. A door lock with a latch bolt direction change function, characterized in that a reinforcing portion 52 is formed to reduce the clearance that occurs when combining the spindle connector 50 and the spindle connector 50.
According to paragraph 4,
A latch bolt characterized in that a portion of the third groove 51 has an open shape 53 so that the reinforcement portion 52 above in the spindle connector 50 can be manufactured by bending after press forming a metal plate. A door lock with a direction change function.
According to paragraph 1,
A 'ㄷ' shaped first groove 21 is formed at the rear bottom of the deadbolt 20, and the rotating body 30 has a protrusion 32 accommodated in the first groove 21 on its outer surface. Formed, when the rotating body 30 rotates, the protrusion 32 pushes the left or right side of the first groove 21 and moves the deadbolt 20 forward or backward to lock the door (Do),
A first inclined surface (22) at a 45 degree angle is formed at the left and right lower ends of the first groove (21), so that when the deadbolt (20) is fully advanced or backward, the protrusion (32) is in contact with the first inclined surface (22). A door lock with a latch bolt direction change function, characterized in that it comes into contact.
According to clause 6,
It includes a first torsion spring (S1) on the upper side of the rotating body (30),
When the protrusion 32 rotates due to the rotation of the rotating body 30, the protrusion 32 deforms the first torsion spring S1, and the protrusion (32) deforms the first torsion spring S1 by the elastic restoring force of the first torsion spring S1. A door lock with a latch bolt direction change function, characterized in that by accelerating the rotation of the deadbolt (20), the forward or backward operation of the deadbolt (20) is accelerated.